Mambor 5.4升级到5.5不能打开内容条目管理菜单
5.4正常，今天心血来潮升级到5.5，结果就出错了
错误信息：
DB function failed with error number 1
Can't create/write to file '/tmp/#sql_d57_0.MYI' (Errcode: 13) SQL=SELECT c.*, g.name AS groupname, cc.name, u.name AS editor, f.content_id AS frontpage, s.title AS section_name, v.name AS author FROM mos_categories AS cc, mos_sections AS s, mos_content AS c LEFT JOIN mos_groups AS g ON g.id = c.access LEFT JOIN mos_users AS u ON u.id = c.checked_out LEFT JOIN mos_users AS v ON v.id = c.created_by LEFT JOIN mos_content_frontpage AS f ON f.content_id = c.id WHERE c.state >= 0 AND c.catid=cc.id AND cc.section=s.id AND s.scope='content' ORDER BY s.title, c.catid, cc.ordering, cc.title, c.ordering LIMIT 0,20
环境：centos 4.6, Apache 2.0.x, php 4.3.x, mysql 4.1.x
